Ketchum, ID 83340 Frost Dates
Frost dates for Ketchum, ID, ZIP 83340
The NOAA station nearest to 83340 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 5b (-15 to -10°F average annual minimum).
How Ketchum compares
About 77 days separate Ketchum's last and first frost, putting it 40,071 of 40,283 ZIP codes nationally. Within ID, it ranks 287 of 320.
Learn more
local microclimates explains what one yard in Ketchum can differ from the 83340 normal, and the methodology explains exactly which NOAA and USDA figures feed 83340's numbers.